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arm64: dts: rockchip: add SPDIF node for ROCK Pi 4

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[ Upstream commit 697dd494cb1cf56acfb764214a1e4788e4d1a983 ]

Add a SPDIF audio-graph-card to ROCK Pi 4 device tree.

It's not enabled by default since all dma channels are used by
the (already) enabled i2s0/1/2 and the pin is muxed with GPIO4_C5
which might be in use already.
If enabled SPDIF_TX will be available at pin #15.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alex Bee 2021-06-18 20:12:56 +02:00 committed by Greg Kroah-Hartman
parent 99c8b2e997
commit 28e5e3e59b
1 changed files with 26 additions and 0 deletions
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26
arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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@ -42,6 +42,23 @@
dais = <&i2s0_p0>;
};
sound-dit {
compatible = "audio-graph-card";
label = "SPDIF";
dais = <&spdif_p0>;
};
spdif-dit {
compatible = "linux,spdif-dit";
#sound-dai-cells = <0>;
port {
dit_p0_0: endpoint {
remote-endpoint = <&spdif_p0_0>;
};
};
};
vcc12v_dcin: dc-12v {
compatible = "regulator-fixed";
regulator-name = "vcc12v_dcin";
@ -631,6 +648,15 @@
status = "okay";
};
&spdif {
spdif_p0: port {
spdif_p0_0: endpoint {
remote-endpoint = <&dit_p0_0>;
};
};
};
&tcphy0 {
status = "okay";
};